I think I need a five blade

excalibur82 · 10-21-2009, 01:04 PM

I recently converted my 27 excalibur to a bravo.I set the x at 19 inches. For power i have a 540 that makes 650hp at 5500.I am running a 28 bravo that was labbed by merc racing for my friends 25 outlaw. At 5700 i am doing 86mph and at 3800 53mph.The slip numbers seem kind of high. I was wondering if a 5 blade would be a better prop because of the drive hieght.When it was a trs i use to run a 25 mirage plus un touched and at 3600 i ran 50-52 depending on the day and 78at 5400.

PIT BULL · 10-21-2009, 09:41 PM

I might be willing to do a deal with your Bravo Prop. Look at My prop question for details on how the ran on my boat. The P5 costs about $1150 Thanks,Steve 516 771-6492

Griff · 10-22-2009, 01:02 AM

A 19" X is pretty high for a single engine conventional V. Your propshaft has to be about only 3" below the bottom. I'm betting you throw a pretty good rooster tail. How is the bow lift??? Does it respond well to trim??? You may be better off trying a 1" spacer.

excalibur82 · 10-22-2009, 03:45 AM

The boat has a notched transom and is a 7 ft beam if that helps.It does respond well to trim.the more i trim it the faster it goes. Here is a link of me running the boat .http://www.youtube.com/watch?v=FSSG-9bdwy8 .The boat did pick up 6 mph from the swap.I am going to try a new 30 bravo one just to see what it does.Do you think a hydromotive px5 could work for me.

CB-BLR · 10-22-2009, 11:09 AM

I run my outdrive at 3-3.5 inches below the keel, with a notched transom... and I love the P5-x's. They hook up much better than the Bravo's on the bottom end, and are a couple of mph faster on the top end.

Chris

p.s. your boat looks like it is running really well across the water

PIT BULL · 10-22-2009, 01:18 PM

I ran a 28 Bravo yesterday and got 81.6@5250. My 30 Hydromotive 4 blade got me 79.2@4900. Maybe a hydro Bravo trade might work out for both of us.Its for the big shaft and is MINT.

Griff · 10-22-2009, 02:07 PM

Quote:

Originally Posted by excalibur82

The boat has a notched transom and is a 7 ft beam if that helps.It does respond well to trim.the more i trim it the faster it goes. Here is a link of me running the boat .http://www.youtube.com/watch?v=FSSG-9bdwy8 .The boat did pick up 6 mph from the swap.I am going to try a new 30 bravo one just to see what it does.Do you think a hydromotive px5 could work for me.

The running attitude looks pretty good. A PX5 should reduce your slip and increase your cruise speeds. I would talk to BBlades to get an expert opinion on what you should expect. I think he likes the 5 Blade Maximus better.

excalibur82 · 10-22-2009, 02:12 PM

I just tried a un touched 30 bravo. At 3800 61-62 and at 5200 85.8 so i'm sayin 86.That was in dead calm water. The boat likes chopp. I think a 30 labbed might be the one.I only have to trim it a little and it throws a mean tail.Chris i think you might be right with the px5 what pitch do you think i would need.

Thanks Rob

excalibur82 · 10-22-2009, 02:18 PM

Griff that day i had a hole in my trim line so I had just a little trim in it.when you trim it more it really loosens up and throws a big tail but it dose not get much faster.Maybe BBlades will chine in.But i think the five blade might be the answer.

PIT BULL · 10-22-2009, 06:10 PM

The best way to find out if one works is to try it. I just cleaned out about 10 of my 20 props I have collected for mainly out boards. I just started My I/O collection last month, Im up to five different props. By next month it should be up to 10. When I find the best three I will sell the rest to get my money back. I even will buy two the same ones as they might run differently. The key is to buy them cheap so you dont take such a hit. Good luck. Dont under estimate a good 4 blade for a 5.